Stove.



W. V. ROBINSON.

STOVE.

APPLICATION FILED APR. 24. 1914.

Patented Jan. 2, 1917.

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STOVE.

APPLICATION FILED APR. 24. 19.

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WILLIAM v. ROBINSON, or LANSING, MICHIGAN.

STOVE.

Application filed April 24, 1914. Serial No. 834,092. 1

To all whom it may concern Be it known that I, WILLIAM V. ROBIN- soN, acitizen of the United States of America, residing at Lansing, in thecounty of Ingham and State of Michigan, have invented certain new anduseful Improvements in Stoves, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to stoves, and resides in the provision of anunderfeed heating stove which will effect an efiicient burning of theproducts of combustion; in a novel construction of grating or bottom fora firepot; and in certain details of construction as will more fullyhereinafter appear.

In the drawings, Figure 1 is a perspective view of a stove embodying theinvention; Fig. 2 is a vertical, central section therethrough; Fig. 3 isa section on the line 00-00 of Fig. 2; and Fig. i is a perspective viewof the under side of thegrate.

A designates the fire-pot of the stove, B the ash pit suitably mountedupon a base C, and D is the drum extending upwardly above the fire-pot.

E is the fuel inlet formed by a forwardlyextending enlargement of thefire-pot, preferably integral therewith, and F is a door or closure forthe outer end of the fuel inlet. Secured to the drum is a sectional castring G having the portion intermediate its ends dished inwardly, forminga chamber H intermediate the portion H of the stove wall and the ring.In the structure shown, the ring G has an upwardly extending annularflange I at its upper end attached to the drum as by rivets I, while thelower edge rests against the upper portion of the firepot preferablybelow the top edge of the fire-pot. an air inlet opening J controlled bya suitable damper as the slide damper K, the latter in the structureillustrated being arranged at the front of the stove above the fuelinlet. Preferably the upper wall L of the fuel inlet extends inwardly aslight distance, and at this point the lower edge of the ring G is cutaway, as indicated by M. An opening or openings are provided forpermitting the air to pass from the chamber H to the top of the firepot, and I find it desirable to accomplish this by forming a pluralityof apertures N adjacent the lower edge of the ring.

In operation of the stove so far described,

Specification of Letters Patent.

The chamber H is provided with Patented Jan. 2, 1917.

fuel is supplied through the inlet E to the fire pot, the fuel burningwithin the fire-pot and the gases rising from the fuel in the fire-potcomminglingwith the air passing from the chamber I-I through. theapertures N. The amount of air entering the chamber II may be regulatedby properly adjusting the slide damper, the burnt, gases passing upthrough the drum and discharging by way of the chimney fiue O.Preferably the door P of the ash pit is provided with a damper. Q so asto allow air to pass up through the grate R if desired. As the fuel fedto the fire-potthrough the inlet opening tends to shove the clinkers tothe rear of the fire-pot,

I have provided a novel construction of grate which will allow theclinkers to be readily removed from the rear of the firepot. Thus asshown, the grating or bottom R of the fire-pot is provided with a.section S suitably mounted at the base of the fire-pot, and formed inits rear portion with an open: ing X, adapted to be closed by a sectionV preferably arranged below the plane of the.

section S and mountedin bearings W so as to be moved forwardly to theposition shown in dotted lines. Attached to the section V is anactuating portion or handle W which extends to adjacent the door of theash pit. Thus by moving the section V forwardly the clinkers will beallowed to drop through the space X into the ashpit.

While I have shown and described the preferred form of the invention, Ido not desire my protection limited to the exact details of constructionillustrated, but consider my invention of sufficient scope to embodyvarious modifications.

What I claim as my invention is 1. In an underfeed stove, thecombination with a fire-pot, of a laterally-extending fuel inlet on thelower portion of said fire-pot,

its lower wall inclining slightly upward and the outer edge thereofforming a fulcrum for a poker adapted to lift the live fuel within saidfire-pot to permit the feeding in of green fuel on to the grate, an airchamber.

adjacent to the upper wall of said laterallyextending fuel inlet,having. inwardly-opening air discharge apertures, and control ingsaround the lower end thereof, and a laterally-extending fuel inlet onthe lower portion of said fire-pot, its lower wall inclining slightlyupward and the outer edge. thereof forming a fulcrum for a poker adaptedtolift the live fuel within said firepot to permit the feeding of greenfuel on to the grate below the air inlet.

3. In a stove, the combination with a firepot and a drum thereabove, ofan annular member within the upper portion of said fire-pot forming anair chamber having an external inlet and a series of inward dischargeopenings around the lower edge 15 thereof, a laterally-extending fuelinlet con- ,ase

nection on the lower portion of said fire-pot beneath said air chamber,its lower wall indining slightly upward and the outer edge thereofforming a fulcrum for a poker adapted to lift the live fuel within thefirepot to permit the feeding of green fuel thereunder, and a cover'forthe outer end of said fuel inlet.

In testimony whereof I afiiX my signature in presence of two witnesses.

WILLIAM V. ROBINSON.

Witnesses: C. W. GR ENWALD, 1-1. W. KAULITZ.

Copies ofthis patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G. r

